Clearer for roving or spinning frames



' 1945- w. J. DUNLEAVY 2,382,214

' QLEARER FOR ROVING 0R SPINNING FRAMES Filed Oct. 14, 1944- IN V ENTOR.

. Wm @11725861734 aw. 77Mg HT YV Patented Aug. 14, 1945 CLEARER FORROVING OR SPINNING FRAMES William J. Dunlcavy, East Douglas, Mass.,assignor to Whitin Machine Works, Whitinsvrlle,

Mass., a corporation of Massachusetts Application October 14, 1944,Serial No. 558,657

2 Claims.

This invention relates to clearers for removing lint or fiy from drawingrolls or aprons in a roving or spinning frame. Both fixed and movableclearers have heretofore been used, and it is the general object of myinvention to provide a clearer which will effectively combine the goodfeatures and combinations of parts which will be hereinafter describedand more particularly pointed out in the appended claims.

A preferred form of the invention isshown in the drawing, inwhich Fig. 1is a sectional end view of my improved clearer, with associated parts ofa drawing frame;

1IEI'ig. 2 is a partial front elevation of the clearer ro v Fig. 3 is asectional end view, taken along the line 3-3 in Fig. 2; and

gig. 4 is a partial front elevation of a drawing ro Referring to thedrawing, I have shown parts of a drawing frame of usual construction andcomprising upper and lower front drawing rolls l and II upper and lowermiddle rolls l2 and I 3, and upper and lower back rolls l4 and 15. Longdraft aprons l6 and I1 may be provided for the vmiddle rolls l2 and I3,and these aprons have fixed guide-bars I8 adjacent the front rolls l0and II, all of these parts being of the usual commercial construction.

My improved clearer comprises a roll 20, preferably of light wood andhaving alternate flat outer surface portions 2| and concave depressedportions 22. At its ends, the roll 20 is provided with 'pins or gudgeonshaving bearing support on leaf springs 25.

The middle portion of the .roll 20 is reduced in diameter, as indicatedat 30, and is provided with a series of pins 3| spaced at 90 andinclined at substantially 45 clockwise, as viewed in Fig. 3. A similarand adjacent series of pins 32 is also provided but these pins areinclined in the-opposite direction or anti-clockwise. Spaced brushportions 33 are provided at each side of the pins 3| and 32 to clear theneck 34 of the drawing roll.

The surface of the roll 20 is provided with a soft cushion surface,which may be of felt or some other loosely woven and felt-like fabric-The'lower back drawing roll i5 has a spring clip 40 applied to itsreduced middle portion or neck 34, as shown in Fig. 4, and this clip 40has an offset end portion forming a driving lug 42 adapted to engage thepins 3| or 32.

During the major part of each rotation of the drawing roll IS, theclearer roll 20 remains in the position shown in Figs. 1 and 3, with theconcave recessed portions 22 engaging the rolls I 3 and I5 and wipingthe lint and fly therefrom. As the lug 42 advances, it engages one ofthe pins 32, as indicated in Fig. 3, and the roll 20 will then beadvanced in the direction of the arrow a in Fig. 1 until the lug 42clears the engaged pin 32. By this time, however, the flat portions 2|of the roll 20 will be engaged by the rolls i3 and I5 and the roll willbe further advanced thereby until depressed portions 22 again engage thedrawing rolls. The clearer will then remain at rest until the lug 42engages another pin 32.

Two series of pins 3! and 32 are provided, so that the roll 20 will beoperated if inserted in the position shown in Fig. 2 or if inserted in areverse position, with the pins 3| at the right of the pins 32. In thelatter case, the lug 42 will engage the pins 3|. It will be noted inFig. 4 that the clip 40 is so placed that the lug 42 is off center andwill engage only one series of pins for each end-forend position of theroll 20.

This extremely simple clearer construction has the wiping effect of astationary clearer when in the position shown in Fig. 1 and also has theadvantage of the movable clearer as it is advanced angularly at eachrevolution of thedrawing rolls.

Having thus described my invention and the advantages thereof, I do notwish to be limited to the details herein disclosed, otherwise than asset forth in the claims, but what I claim is:

portions, and intermittently-operated means to angularly advance saidclearer roll to effect engagement of raised portions of said roll withthe drawing rolls for further angular advance of said clearer rollthereby, and said latter means comprising spaced pins on said clearerroll and a driving lug on one of the drawing rolls which engagessuccessive pins on said clearer roll on successive revolutions of saiddrawing roll, said pins being disposed in two oppositely inclined setsand said driving lug being axially positioned to engage one set only ofsaid pins in the clearer roll in a given end-for-end position of saidroll.

2. The combination in a clearer mechanism as set forth in claim 1, inwhich the clearer roll is provided with brushes alongside said set ofpins, whichbrushes engage and clean the drawing rolls at each side ofthe driving lug.

WILLIAM J. DUNLEAVY.

